Question

0.32×2.5+0.84÷4简便？

Answer 1

分析：
要想简便算法，就要找出公因数。
先把除以4，变成乘法，也许2.5和4有联系。

计算过程：
0.32×2.5+0.84÷4
=0.32×2.5+0.84×0.25
=0.32×2.5+0.084×2.5
=2.5×（0.32+0.084）
=1.01

Answer 2

将0.32分解成0.4乘以0.8，先计算2.5×0.4,得到答案是一，然后再乘以0.8，结果还是0.8，，后面的数相除等于0.21，直接相加就等于1.21

Answer 3

0.32×10/4+0.84/4
=32/4+0.84/4
=32.84/4
=8.21

Answer 4

0.32×2.5+0.84÷4
= 0.8+0.21
=1.01

Answer 5

=0.08×4×2.5+0.21
=0.08×10+0.21
=0.8+0.21
=1.01